Bacula-users

Re: [Bacula-users] Question about Filesize from tape files

2012-12-03 04:32:56
Subject: Re: [Bacula-users] Question about Filesize from tape files
From: Dimitrij Hilt <dimitrij.hilt AT fhe3 DOT com>
To: lst_hoe02 AT kwsoft DOT de
Date: Mon, 03 Dec 2012 10:29:37 +0100
Am 03.12.2012 10:23, schrieb lst_hoe02 AT kwsoft DOT de:
>
> Zitat von Dimitrij Hilt <dimitrij.hilt AT fhe3 DOT com>:
>
>> Am 03.12.2012 02:21, schrieb Dan Langille:
>>> On Dec 2, 2012, at 6:40 PM, Dimitrij Hilt wrote:
>>>
>>>>
>>>> Hi there,
>>>>
>>>> i have bacula system on debian squeeze with packages from back ports.
>>>
>>> What version of Bacula are you running?
>> Version: 5.2.6 (both DIR and SD) comming from Debian backports package
>> 5.2.6+dfsg-1~bpo60+1.
>>>
>>>> I
>>>> use file based backups and i'm wondering why tape files are created as
>>>> sparse file:
>> du --block-size 1 file-0399
>>>> 134742016  file-0399
>> du --bytes file-0399
>>>> 70112117   file-0399
>>>
>>> What does the above represent?  What command did you issue?
>>>
>>>> Any idea how i can avoid it? It waste to much disc space.
>>>
>>>
>>> Not yet. I don't know what I'm looking at.  :)
>>
>> Thanks.
>>
>> Once more. If i copy this file localy and back, it shrinks to normal
>> size and both 'du' are same. Restore from shrinked file is still possible.
>
> Not sure but from my knowledge Bacula does not delete/truncate files
> by default when they are reused but simply overwrite them. You could
> try "Action On Purge = Truncate" to "shrink" the files before reuse.
These files was not reused. It is new system and create new (possible 
sparse) files. "Action On Purge = Truncate" is allready inplace.

Dimi


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